This powerful muscle stimulator pack the proven concepts of NMES & TENS into a sleek lightweight pod you can use anywhere. The Duo edition has double the pads, double the power and accelerates recovery by allowing you to stimulate both sides of your target muscle group at once for a more dynamic treatment. Fully controlled by the PowerDot app, it takes the guesswork out of electrical muscle stimulation by guiding and customizing your intensity and pad placement. Trusted by everyone from the world's top athletes, to fitness enthusiasts, and beyond. Recipient's choice of color.